Restore Full Electrical Function to Your GM Vehicle
Is your Cadillac SRX, Chevy Equinox, or GMC Acadia suffering from bizarre electrical issues? Flickering lights, malfunctioning power windows and locks, or a security system that acts on its own are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating and difficult-to-diagnose problems. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We provide a high-quality BCM that is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships, ensuring a seamless installation process.
From the Diagnostic Bay
We once had a 2008 GMC Acadia come in with a laundry list of phantom electrical problems. The radio would change stations randomly, the dome lights would flicker while driving, and the driver’s power window would only work occasionally. The owner had already replaced the battery and checked fuses with no luck. After connecting our diagnostic scanner, we saw multiple communication error codes between various modules. This pointed us directly to the BCM. A failing BCM can flood the vehicle’s data network with corrupt information, causing chaos. We installed a VIN-programmed BCM, and like magic, every single issue was resolved. This is a classic failure mode, and a pre-programmed module is the fastest, most reliable fix.
Diagnosing a Faulty 2007-2009 SRX Body Control Module
A failing BCM doesn’t always trigger a check engine light, making it tricky to diagnose. Instead, you’ll notice problems with the comfort and convenience features it controls. If you’re experiencing several of the symptoms below, your BCM is the likely culprit. Replacing it with our pre-programmed unit can save you hundreds in diagnostic and programming fees at a dealership.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on, flickering, or not turning on.
- ✔ Malfunctioning instrument cluster gauges or warning lights.
- ✔ Vehicle security system engaging randomly or preventing the car from starting.
- ✔ Horn honking unexpectedly or not working.
- ✔ Intermittent issues with the radio or climate control systems.
- ✔ A parasitic battery drain that kills your battery overnight.
A True Plug-and-Play Solution
The biggest hurdle in replacing a modern vehicle computer is the need for expensive, dealer-level programming. Our service eliminates that step entirely. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash the module with the latest GM-certified software specific to your car’s options and features. When the part arrives, it’s ready for installation. In most cases, this restores full functionality without any additional steps. However, for some vehicles, certain post-installation procedures may be necessary.
Post-Installation Procedures
While we handle the primary programming, some vehicle systems may require a relearn or synchronization process after the new BCM is installed. These procedures are typically straightforward and can often be done with a high-level bidirectional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the new BCM with the airbag module. This is a security measure and is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure proper operation of the brake lights and stability control system.
Please consult a factory service manual or a qualified technician for detailed instructions specific to your vehicle.
Guaranteed Fitment
This BCM is a direct replacement for a wide range of General Motors vehicles and interchanges with numerous part numbers. Please verify that your original module carries one of the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Frequently Asked Questions
What does a Body Control Module do?
The BCM acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and instrument cluster functions. It communicates with other modules to ensure everything works together seamlessly.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features from the factory. This ensures compatibility and makes the installation process plug-and-play, saving you a trip to the dealership for costly programming.
Is this BCM difficult to install?
The physical installation is typically straightforward for someone with moderate mechanical skill. The BCM is usually located under the dashboard on the driver’s or passenger’s side. The main challenge is accessing it. Since our module comes pre-programmed, you avoid the complex software setup, making the job much easier.
Will this fix my specific electrical problem?
If your vehicle is exhibiting multiple symptoms from the list above (erratic lights, locks, windows, etc.), a faulty BCM is the most likely cause. While we cannot guarantee a fix for a single, isolated issue without a proper diagnosis, this part resolves the vast majority of widespread electrical gremlins in these vehicles.
What happens if the airbag light comes on after installation?
This is a normal security procedure on some GM vehicles. The new BCM needs to be electronically ‘introduced’ to the airbag system’s Sensing and Diagnostic Module (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.